Journal
CORROSION SCIENCE
Volume 76, Issue -, Pages 163-169Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.corsci.2013.06.039
Keywords
Stainless steel; Polarization; SEM; Crevice corrosion
Funding
- National Science Foundation of China [51131008, 51134010, 51071049]
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The crevice corrosion of UNS S32101 in neutral 0.1 M NaCl solutions at room temperature was investigated directly by a facile method. Experimental results showed that both delayed and immediate crevice corrosion can be initiated. Morphology study indicated that the heaviest corrosion attack happened just below the passive/active boundary on the crevice wall. The relocation of the active dissolution regions during crevice corrosion was observed and explained by established theory. The mechanisms of the delayed and immediate types of crevice corrosion on UNS S32101 duplex stainless steel were discussed. (C) 2013 Elsevier Ltd. All rights reserved.
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